| 摘要 |
<p>The casing (1) has a cover (7) i.e. ridge roof, including an outer surface (7a). Edge regions (10) of free ends (4) of side pads (5) are inwardly bent with respect to a middle plane of a metal or plastic channel. Stud bolts are sealed at the surface of the edge regions. The stud bolts are inserted into a hole in the cover during raising the cover and from screw joints (6) with corresponding nuts (14). Elastic sealing strips (16) are arranged in a region of edges (15) of the side pads and inwardly arranged at a distance from the screw joint.</p> |
